Experiment instrument for designing and developing single-chip microcomputer

Abstract

The invention discloses an experiment instrument for designing and developing a single-chip microcomputer. The experiment instrument mainly comprises a keyboard, an LCD (liquid crystal display) interaction multi-level menu display experiment, an A / D (Analog to Digital) conversion and data acquisition experiment of a temperature sensor signal, a D / A (Digital to Analog) conversion and waveform generating experiment, a CAN (controller area network) bus communication experiment, an RS485 bus communication experiment, an LIN bus communication experiment, an RS232 interface communication experiment, a wireless radio frequency receiving / transmitting experiment, a CPLD (complex programmable logic device)-based double parallel communication experiment, a communication SPI (Single Program Initiation) interface-based dual-single-chip microcomputer communication experiment, an H bridge PWM (pulse-width modulation) driver-based micro direct-current motor speed-regulating experiment, a micro stepping motor speed-regulating experiment and a watchdog experiment. The experiment instrument is suitable for designing and developing a single-chip microcomputer system by students and scientific and technical personnel who are engaged in developing a single-chip microcomputer system.

Description

technical field [0001] The invention relates to the field of single-chip microcomputer system design and development, in particular to a single-chip microcomputer system design and development experiment instrument. Background technique [0002] The principle and application of single-chip microcomputer has always been one of the first-choice basic courses for undergraduates of electronic information, and it is matched with the principle and application of single-chip microcomputer. The traditional teaching content mainly includes the assembly instruction system of 51 single-chip microcomputers, assembly language programming, C language programming ( C51), 51 single-chip conventional interface technology, such as parallel interface, serial interface, A / D converter and its interface, keyboard and LCD display and its interface, I2C interface, SPI interface, etc. Although some single-chip computer teaching materials have added some new interface technology and proteus single-ch...

AI Technical Summary

Problems solved by technology

Using these textbooks, students can only learn simple programming methods and simple interface technology, lack the overall design concept of single-chip microcomputer system, and cannot design a single-chip microcomputer application system from the perspective of the system

[0003] At present, the single-chip microcomputer principle experiment box used by ordinary colleges and universities in China, no matter what manufacturer produces it, and no matter how the experimental content is introduced, are all isolated experimental contents, only for the principle verification experiment of single-chip microcomputer controlling a specific peripheral. There is no systematic design of the experimental content from the perspective of engineering application. Through the experiment, students can only understand the principle and experimental results of a single-chip microcomputer controlling a specific peripheral, and lack of understanding of the use of a single-chip microcomputer to control a specific peripheral. Why use a certain interface method to control peripherals? What about other controls? What are the characteristics of the signal level of the microcontroller control interface? How to test the output voltage of the sensor and the output voltage of the conditioning amplifier? How to verify the corresponding relationship between the analog channel acquisition voltage and the A / D converter result? Why should a communication protocol be formulated for serial communication and parallel communication, and how to formulate it? Such experimental content, experimental methods, and thought-provoking questions with engineering application backgrounds cannot be done by the traditional single-chip microcomputer principle experiment box.

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